LFE2M50E-PS-EVN Lattice, LFE2M50E-PS-EVN Datasheet - Page 34

• Manufacturer Part Number: LFE2M50E-PS-EVN
• Description: Programmable Logic IC Development Tools LatticeECP2M PCI Express Dev Kit
• Manufacturer: Lattice

Specifications of LFE2M50E-PS-EVN

• Rohs: yes
• Tool Is For Evaluation Of: LatticeECP2M-50
• Factory Pack Quantity: 1

Running the PCI Express Basic Demo
LatticeECP2M PCI Express Development Kit User’s Guide
Table 4: 16 Segment Control Page Features
Feature
SET
CLEAR
4. Now click on any segment in the interactive segment display in 16
5. Now type any character in the text box and click the Set button. The
6. Click the Clear button. This turns off all segments of the LED display.
7. Next, click on the Memory tab to open the Memory page. The Memory
Table 5: Memory Page Text Box Color Codes
Color Code
Green
Yellow
Blue
Segment Control page. Notice that any selection will immediately cause
the corresponding segment on the LED to light on your solutions board’s
LED display.
Clicking on a segment will turn it on or off (toggles). The 16-bit value
written to the LED register in the FPGA is shown on the bottom left.
character will be configured in the display.
This second mode of operation allows a single character to be sent to the
display. Any printable ASCII character can be displayed (lower case is
displayed as upper case). You cannot write a blank character using SET.
Right-clicking on the background area behind the segments will clear the
entire display.
The interactive 16 Segment Control page demonstration you just
performed illustrates that a functional PCI Express communications path
exists between the application and driver software that is running on the
CPU and the FPGA IP. Continue on to learn more about the other pages
in the PCIe Basic demo software and their features.
tab has various memory access tests that can be run to show that the IP is
accessible from host software via the PCI Express bus. Refer to graphic in
Figure 6.
The page contains text boxes for entering data to be sent to device
registers in the FPGA design. These text boxes are color coded to
indicate the data format they accept. See the Table 5 below for details
about these codes.
The Memory Page features allow you to test the access to the 16KB of
EBR internal to the FPGA. Accesses are done on a byte basis. All 16KB
memory locations are accessed successively, testing the PCIe link to the
Description
Indicates hex value fields. Do not include any prefixes (0x) or
suffixes (H). Only digits are allowable.
Indicates character string fields, e.g., ones containing file
names, paths, or letter values.
Indicates decimal (base 10) value fields.
Description
Sets a user-defined LED light command operation based
on input characters in the text box.
Turns off all segments in the display.
Touring the PCIe Basic Demo Interface
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